Photoluminescence properties of Eu3+ doped La(OH)3 phosphors: Fuel dependent combustion synthesis

Photoluminescence properties of Eu3+ doped La(OH)3 phosphors: Fuel dependent combustion synthesis Научная публикация

Журнал

Inorganic Chemistry Communications
ISSN: 1387-7003 , E-ISSN: 1879-0259

Вых. Данные

Год: 2024, Том: 170, Номер статьи : 113167, Страниц : 13 DOI: 10.1016/j.inoche.2024.113167

Ключевые слова

Photoluminescence, Phosphor, Combustion synthesis, Fuel, WLEDs

Авторы

Gaikwad Amruta ^1,4 , Parauha Yatish R. ^2,3 , Dabre K.V. ⁴ , Nikolay Naumov G. ⁵ , Dhoble S.J. ¹

Организации

1	Department of Physics, R.T.M. Nagpur University, Nagpur 440033, India
2	Ramdeobaba University, Nagpur 440013, India
3	Department of Physics, Shri Ramdeobaba College of Engineering and Management, Nagpur 440013, India
4	Department of Physics, Taywade College, Mahadula-Koradi, Nagpur 441111, India
5	Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russia

In this study, we synthesized La(OH)3:Eu3 + phosphor using the combustion method with diverse fuels — urea, glycine, and dextrose. Through XRD patterns and Rietveld refinement, we confirmed a hexagonal crystal structure with a P63/m space group for all samples. Our analysis also delved into morphological properties and elemental composition, revealing intriguing differences in particle shapes despite similar sizes, depending on the fuel utilized. Interestingly, the PL excitation and emission characteristics remained consistent among the sam- ples, displaying distinct bands. Spectroscopic investigation of Eu3 + activated La(OH)3 exhibits the strong red emission which indicated effective energy transfer among rare earth and host. Notably, when excited at 284/290 nm and 395 nm, the phosphor emitted multicolour bands spanning blue to red regions. However, some chal- lenges and shortcomings were observed related to lanthanum hydroxide such as thermal stability, because at higher temperatures samples decompose easily which can limit their high-temperature applications. Addition- ally, some more issues are with this material i.e. complexity in synthesis, insolubility in water and ageing and exposure to atmospheric CO2 which can change its composition. Despite these challenges, our research focuses on optimizing and improving all these parameters. Addressing these shortcomings of lanthanum hydroxide can be beneficial for the advancement of applications. This impressive emission spectrum underscores the potential of this synthesized phosphor for lighting and display devices. The consistent photoluminescence features across different fuel variations suggest robustness and versatility, indicating promising avenues for future exploration in lighting technology research.

Gaikwad A. , Parauha Y.R. , Dabre K.V. , Nikolay N.G. , Dhoble S.J.
Photoluminescence properties of Eu3+ doped La(OH)3 phosphors: Fuel dependent combustion synthesis
Inorganic Chemistry Communications. 2024. V.170. 113167 :1-13. DOI: 10.1016/j.inoche.2024.113167 WOS Scopus РИНЦ OpenAlex

Поступила в редакцию:	13 июн. 2024 г.
Принята к публикации:	11 сент. 2024 г.
Опубликована online:	17 сент. 2024 г.
Опубликована в печати:	27 дек. 2024 г.

Web of science:	WOS:001321206800001
Scopus:	2-s2.0-85204356722
РИНЦ:	74188583
OpenAlex:	W4402564977

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